This paper addresses deafness problem that occur when
MAC protocols are designed by using directional antennas. Briefly,
Deafness is caused when two nodes are busy in ongoing
transmission and another node (Deaf Node) wants to communicate
with any of these busy nodes. But it gets no response because
transmission of two nodes is in process. This paper proposes
DMAC/DS (Directional MAC with Deafness Solution) to overcome
the deafness problem. In DMAC/DS, WTP (Wait for Time Period)
frames are transmitted by the transmitter and the receiver after the
successful exchange of RTS (Request To Send) and CTS (Clear To
Send) directionally to notify the ongoing communication to
potential transmitter node that may experience deafness. We
evaluate our protocol through extensive simulation study with
different values of parameters such as the number of flows, data
size and bandwidth. The experimental results show that DMAC/DS
outperforms existing directional MAC protocols, such as
DMAC/DA (MAC with Deafness Avoidance) and MDA (MAC
protocol for Directional Antennas), in terms of throughput, RTS
failure ratio, and control overhead.
Ashish Chaturvedi : received his B.E.
degree in computer science from maa kaila
devi institute of information technology &
management, Gwalior in 2012. He is
currently pursuing M.Tech from ITM
University, Gwalior. His research interest
includes protocols and solving deafness
problem as well as other issue of Ad-Hoc
networks.
Shashi Kant Gupta : working as Asst.
Professor in Department of Computer
Science Department, ITM university Gwalior.
He received his MCA from ITM Gwalior and
he completed MTech. from BIST Bhopal
Dr. Pallavi Khatri : received her Ph.D. from
Jiwaji University, Gwalior, She completed her
M.Tech. from MITS, Gwalior. She did her B.E.
in Computer Technology from RCERTChandrapur.
She is an Associate Professor at
ITM University Gwalior, India.
Ad Hoc Network
Medium Access Control
Directional
antennas
This paper has focused on deafness problem that may affect
the performance of MAC protocols for ad hoc network using
directional antennas, and proposed DMAC/DS to handle the
deafness problem proactively. In DMAC/DS, the WTP
frames are transmitted by the transmitter or the receiver
(only when they receives RTS frame from any potential
transmitter), after the successful exchange of directional RTS
and CTS to notify the ongoing communication to potential
transmitters that may experience deafness. The experimental
result shows that New DMAC/DS protocol improves overall
network performance and provides effective handling of the
network traffic. It should be noted that Ad hoc network is a
dynamically changing scenario therefore the final
performance depends on network topologies, and flow
patterns in the network.
[1] Ashish Chaturvedi, Sashi Kant Gupta, Aamer
Mohammad, ”Reviewing on Ad Hoc wireless Network”,
IJCTA, Vol 5 (5) 2014
[2] R. Jurdak, C. V. Lopes and P. Baldi, “A Survey,
Classification and Comparative Analysis of Medium
Access Control Protocols for Ad hoc Wireless
Networks”, IEEE Communications Surveys and
Tutorials, Vol. 6, No. 1, First Quarter 2004.
[3] ANSI/IEEE Std 802.11, “Wireless LAN Medium Access
Control (MAC) and Physical Layer (PHY)
specifications”, 1999.
[4] A. Nasipuri, K, S. Ye, J. You, and R. E. Hiromoto, “A
MAC Protocol for Mobile Ad Hoc Networks Using
Directional Antennas”, Proc. IEEE WCNC, pp. 1214-
1219, Sept. 2000.
[5] M. Takai, J. Martin, A. Ren, and R. Bagrodia,
“Directional Virtual Carrier Sensing for Directional
Antennas in Mobile Ad Hoc Networks”, Proc. ACM
MobiHoc, pp. 183-193, June 2002.
[6] R.R. Choudhury, X. Yang, R. Ramanathan, and N.H.
Vaidya, “Using directional antennas for medium access
control in ad hoc networks”, Proc. ACM International
Conference on Mobile Computing and Networking
(MobiCom), pp.59–70, Sept. 2002.
[7] T. Korakis, G. Jakllari, L. Tassiulas, “A MAC protocol
for full exploitation of Directional Antennas in Ad-hoc
Wireless Networks”, Proc. ACM MobiHoc, pp. 98-107,
June 2003.
[8] G. Jakllari, I. Broustis, T. Korakis, S. V. Krishnamurthy
and L. Tassiulas, “Handling Asymmetry in Gain in
Directional Antenna Equipped Ad Hoc Network”, Proc.
IEEE PIMRC, pp. 1284-1288, Sept. 2005.
[9] H. Gossain, C. Cordeiro and D. P. Agrawal, “MDA: An
Efficient Directional MAC scheme for Wireless Ad Hoc
Networks”, Proc. IEEE GLOBECOM, Nov. 2005.
[10] Masanori Takata, Masaki Bandai and Takashi Watanabe,
”A MAC Protocol with Directional Antennas for
Deafness Avoidance in Ad Hoc Networks”, Global Telecommunications Conference, 2007. GLOBECOM
'07. IEEE
[11] J. Wang, Y. Fang and D. Wu, “SYN-DMAC: A
Directional MAC Protocol for Ad Hoc Networks with
Synchronization”, Proc. IEEE MILCOM, pp. 2258-2263,
Oct. 2005.
[12] R. R. Choudhury and N. H. Vaidya, “Deafness: A MAC
Problem in Ad Hoc Networks when using Directional
Antennas”, Proc. IEEE ICNP, pp. 283-292, Oct. 2004.
[13] NS2 Network Simulator, http://www .isi
edu/nsnam/ns/index.html.
[14] R. R. Choudhury, X. Yang, N. Vaidya, and R.
Ramanathan. “Using directional antennas for medium
access control in ad hoc networks”, In Proceeding of
ACM MOBICOM, September 2002.
[15] Vikas Sejwar, “Simulation study for Mobile Ad hoc
Networks Using DMAC Protocol”, IJERA Vol. 2, Issue
1, Jan-Feb 2012, pp. 007-011
